/*! lightgallery - v1.10.0 - 2020-11-07
* http://sachinchoolur.github.io/lightGallery/
* Copyright (c) 2020 Sachin N; Licensed GPLv3 */
(function (root, factory) {
    if (typeof define === 'function' && define.amd) {
        // AMD. Register as an anonymous module unless amdModuleId is set
        define(['jquery'], function (a0) {
            return (factory(a0));
        });
    } else if (typeof module === 'object' && module.exports) {
        // Node. Does not work with strict CommonJS, but
        // only CommonJS-like environments that support module.exports,
        // like Node.
        module.exports = factory(require('jquery'));
    } else {
        factory(root["jQuery"]);
    }
}(this, function ($) {

    (function() {
        'use strict';

        var defaults = {

            mode: 'lg-slide',

            // Ex : 'ease'
            cssEasing: 'ease',

            //'for jquery animation'
            easing: 'linear',
            speed: 600,
            height: '100%',
            width: '100%',
            addClass: '',
            startClass: 'lg-start-zoom',
            backdropDuration: 150,

            // Set 0, if u don't want to hide the controls
            hideBarsDelay: 6000,

            useLeft: false,

            // aria-labelledby attribute fot gallery
            ariaLabelledby: '',

            //aria-describedby attribute for gallery
            ariaDescribedby: '',

            closable: true,
            loop: true,
            escKey: true,
            keyPress: true,
            controls: true,
            slideEndAnimatoin: true,
            hideControlOnEnd: false,
            mousewheel: true,

            getCaptionFromTitleOrAlt: true,

            // .lg-item || '.lg-sub-html'
            appendSubHtmlTo: '.lg-sub-html',

            subHtmlSelectorRelative: false,

            /**
             * @desc number of preload slides
             * will execute only after the current slide is fully loaded.
             *
             * @ex you clicked on 4th image and if preload = 1 then 3rd slide and 5th
             * slide will be loaded in the background after the 4th slide is fully loaded..
             * if preload is 2 then 2nd 3rd 5th 6th slides will be preloaded.. ... ...
             *
             */
            preload: 1,
            showAfterLoad: true,
            selector: '',
            selectWithin: '',
            nextHtml: '',
            prevHtml: '',

            // 0, 1
            index: false,

            iframeMaxWidth: '100%',

            download: true,
            counter: true,
            appendCounterTo: '.lg-toolbar',

            swipeThreshold: 50,
            enableSwipe: true,
            enableDrag: true,

            dynamic: false,
            dynamicEl: [],
            galleryId: 1,
            supportLegacyBrowser: true
        };

        function Plugin(element, options) {

            // Current lightGallery element
            this.el = element;

            // Current jquery element
            this.$el = $(element);

            // lightGallery settings
            this.s = $.extend({}, defaults, options);

            // When using dynamic mode, ensure dynamicEl is an array
            if (this.s.dynamic && this.s.dynamicEl !== 'undefined' && this.s.dynamicEl.constructor === Array && !this.s.dynamicEl.length) {
                throw ('When using dynamic mode, you must also define dynamicEl as an Array.');
            }

            // lightGallery modules
            this.modules = {};

            // false when lightgallery complete first slide;
            this.lGalleryOn = false;

            this.lgBusy = false;

            // Timeout function for hiding controls;
            this.hideBarTimeout = false;

            // To determine browser supports for touch events;
            this.isTouch = ('ontouchstart' in document.documentElement);

            // Disable hideControlOnEnd if sildeEndAnimation is true
            if (this.s.slideEndAnimatoin) {
                this.s.hideControlOnEnd = false;
            }

            // Gallery items
            if (this.s.dynamic) {
                this.$items = this.s.dynamicEl;
            } else {
                if (this.s.selector === 'this') {
                    this.$items = this.$el;
                } else if (this.s.selector !== '') {
                    if (this.s.selectWithin) {
                        this.$items = $(this.s.selectWithin).find(this.s.selector);
                    } else {
                        this.$items = this.$el.find($(this.s.selector));
                    }
                } else {
                    this.$items = this.$el.children();
                }
            }

            // .lg-item
            this.$slide = '';

            // .lg-outer
            this.$outer = '';

            this.init();

            return this;
        }

        Plugin.prototype.init = function() {

            var _this = this;

            // s.preload should not be more than $item.length
            if (_this.s.preload > _this.$items.length) {
                _this.s.preload = _this.$items.length;
            }

            // if dynamic option is enabled execute immediately
            var _hash = window.location.hash;
            if (_hash.indexOf('lg=' + this.s.galleryId) > 0) {

                _this.index = parseInt(_hash.split('&slide=')[1], 10);

                $('body').addClass('lg-from-hash');
                if (!$('body').hasClass('lg-on')) {
                    setTimeout(function() {
                        _this.build(_this.index);
                    });

                    $('body').addClass('lg-on');
                }
            }

            if (_this.s.dynamic) {

                _this.$el.trigger('onBeforeOpen.lg');

                _this.index = _this.s.index || 0;

                // prevent accidental double execution
                if (!$('body').hasClass('lg-on')) {
                    setTimeout(function() {
                        _this.build(_this.index);
                        $('body').addClass('lg-on');
                    });
                }
            } else {

                // Using different namespace for click because click event should not unbind if selector is same object('this')
                _this.$items.on('click.lgcustom', function(event) {

                    // For IE8
                    try {
                        event.preventDefault();
                        event.preventDefault();
                    } catch (er) {
                        event.returnValue = false;
                    }

                    _this.$el.trigger('onBeforeOpen.lg');

                    _this.index = _this.s.index || _this.$items.index(this);

                    // prevent accidental double execution
                    if (!$('body').hasClass('lg-on')) {
                        _this.build(_this.index);
                        $('body').addClass('lg-on');
                    }
                });
            }

        };

        Plugin.prototype.build = function(index) {

            var _this = this;

            _this.structure();

            // module constructor
            $.each($.fn.lightGallery.modules, function(key) {
                _this.modules[key] = new $.fn.lightGallery.modules[key](_this.el);
            });

            // initiate slide function
            _this.slide(index, false, false, false);

            if (_this.s.keyPress) {
                _this.keyPress();
            }

            if (_this.$items.length > 1) {

                _this.arrow();

                setTimeout(function() {
                    _this.enableDrag();
                    _this.enableSwipe();
                }, 50);

                if (_this.s.mousewheel) {
                    _this.mousewheel();
                }
            } else {
                _this.$slide.on('click.lg', function() {
                    _this.$el.trigger('onSlideClick.lg');
                });
            }

            _this.counter();

            _this.closeGallery();

            _this.$el.trigger('onAfterOpen.lg');

            // Hide controllers if mouse doesn't move for some period
            if (_this.s.hideBarsDelay > 0) {

                // Hide controllers if mouse doesn't move for some period
                _this.$outer.on('mousemove.lg click.lg touchstart.lg', function () {
                    _this.$outer.removeClass('lg-hide-items');

                    clearTimeout(_this.hideBarTimeout);

                    // Timeout will be cleared on each slide movement also
                    _this.hideBarTimeout = setTimeout(function () {
                        _this.$outer.addClass('lg-hide-items');
                    }, _this.s.hideBarsDelay);

                });
            }

            _this.$outer.trigger('mousemove.lg');

        };

        Plugin.prototype.structure = function() {
            var list = '';
            var controls = '';
            var i = 0;
            var subHtmlCont = '';
            var template;
            var _this = this;

            $('body').append('<div class="lg-backdrop"></div>');
            $('.lg-backdrop').css('transition-duration', this.s.backdropDuration + 'ms');

            // Create gallery items
            for (i = 0; i < this.$items.length; i++) {
                list += '<div class="lg-item"></div>';
            }

            // Create controlls
            if (this.s.controls && this.$items.length > 1) {
                controls = '<div class="lg-actions">' +
                    '<button type="button" aria-label="Previous slide" class="lg-prev lg-icon">' + this.s.prevHtml + '</button>' +
                    '<button type="button" aria-label="Next slide" class="lg-next lg-icon">' + this.s.nextHtml + '</button>' +
                    '</div>';
            }

            if (this.s.appendSubHtmlTo === '.lg-sub-html') {
                subHtmlCont = '<div role="status" aria-live="polite" class="lg-sub-html"></div>';
            }

            var ariaLabelledby = this.s.ariaLabelledby ?
                'aria-labelledby="' + this.s.ariaLabelledby + '"' : '';
            var ariaDescribedby = this.s.ariaDescribedby ?
                'aria-describedby="' + this.s.ariaDescribedby + '"' : '';

            template = '<div tabindex="-1" aria-modal="true" ' + ariaLabelledby + ' ' + ariaDescribedby + ' role="dialog" class="lg-outer ' + this.s.addClass + ' ' + this.s.startClass + '">' +
                '<div class="lg" style="width:' + this.s.width + '; height:' + this.s.height + '">' +
                '<div class="lg-inner">' + list + '</div>' +
                '<div class="lg-toolbar lg-group">' +
                '<button type="button" aria-label="Close gallery" class="lg-close lg-icon"></button>' +
                '</div>' +
                controls +
                subHtmlCont +
                '</div>' +
                '</div>';

            $('body').append(template);
            this.$outer = $('.lg-outer');
            this.$outer.focus();
            this.$slide = this.$outer.find('.lg-item');

            if (this.s.useLeft) {
                this.$outer.addClass('lg-use-left');

                // Set mode lg-slide if use left is true;
                this.s.mode = 'lg-slide';
            } else {
                this.$outer.addClass('lg-use-css3');
            }

            // For fixed height gallery
            _this.setTop();
            $(window).on('resize.lg orientationchange.lg', function() {
                setTimeout(function() {
                    _this.setTop();
                }, 100);
            });

            // add class lg-current to remove initial transition
            this.$slide.eq(this.index).addClass('lg-current');

            // add Class for css support and transition mode
            if (this.doCss()) {
                this.$outer.addClass('lg-css3');
            } else {
                this.$outer.addClass('lg-css');

                // Set speed 0 because no animation will happen if browser doesn't support css3
                this.s.speed = 0;
            }

            this.$outer.addClass(this.s.mode);

            if (this.s.enableDrag && this.$items.length > 1) {
                this.$outer.addClass('lg-grab');
            }

            if (this.s.showAfterLoad) {
                this.$outer.addClass('lg-show-after-load');
            }

            if (this.doCss()) {
                var $inner = this.$outer.find('.lg-inner');
                $inner.css('transition-timing-function', this.s.cssEasing);
                $inner.css('transition-duration', this.s.speed + 'ms');
            }

            setTimeout(function() {
                $('.lg-backdrop').addClass('in');
            });

            setTimeout(function() {
                _this.$outer.addClass('lg-visible');
            }, this.s.backdropDuration);

            if (this.s.download) {
                this.$outer.find('.lg-toolbar').append('<a id="lg-download" aria-label="Download" target="_blank" download class="lg-download lg-icon"></a>');
            }

            // Store the current scroll top value to scroll back after closing the gallery..
            this.prevScrollTop = $(window).scrollTop();

        };

        // For fixed height gallery
        Plugin.prototype.setTop = function() {
            if (this.s.height !== '100%') {
                var wH = $(window).height();
                var top = (wH - parseInt(this.s.height, 10)) / 2;
                var $lGallery = this.$outer.find('.lg');
                if (wH >= parseInt(this.s.height, 10)) {
                    $lGallery.css('top', top + 'px');
                } else {
                    $lGallery.css('top', '0px');
                }
            }
        };

        // Find css3 support
        Plugin.prototype.doCss = function() {
            // check for css animation support
            var support = function() {
                var transition = ['transition', 'MozTransition', 'WebkitTransition', 'OTransition', 'msTransition', 'KhtmlTransition'];
                var root = document.documentElement;
                var i = 0;
                for (i = 0; i < transition.length; i++) {
                    if (transition[i] in root.style) {
                        return true;
                    }
                }
            };

            if (support()) {
                return true;
            }

            return false;
        };

        /**
         *  @desc Check the given src is video
         *  @param {String} src
         *  @return {Object} video type
         *  Ex:{ youtube  :  ["//www.youtube.com/watch?v=c0asJgSyxcY", "c0asJgSyxcY"] }
         */
        Plugin.prototype.isVideo = function(src, index) {

            var html;
            if (this.s.dynamic) {
                html = this.s.dynamicEl[index].html;
            } else {
                html = this.$items.eq(index).attr('data-html');
            }

            if (!src) {
                if (html) {
                    return {
                        html5: true
                    };
                } else {
                    console.error('lightGallery :- data-src is not provided on slide item ' + (index + 1) + '. Please make sure the selector property is properly configured. More info - http://sachinchoolur.github.io/lightGallery/demos/html-markup.html');
                    return false;
                }
            }

            var youtube = src.match(/\/\/(?:www\.)?youtu(?:\.be|be\.com|be-nocookie\.com)\/(?:watch\?v=|embed\/)?([a-z0-9\-\_\%]+)/i);
            var vimeo = src.match(/\/\/(?:www\.)?(?:player\.)?vimeo.com\/(?:video\/)?([0-9a-z\-_]+)/i);
            var dailymotion = src.match(/\/\/(?:www\.)?dai.ly\/([0-9a-z\-_]+)/i);
            var vk = src.match(/\/\/(?:www\.)?(?:vk\.com|vkontakte\.ru)\/(?:video_ext\.php\?)(.*)/i);

            if (youtube) {
                return {
                    youtube: youtube
                };
            } else if (vimeo) {
                return {
                    vimeo: vimeo
                };
            } else if (dailymotion) {
                return {
                    dailymotion: dailymotion
                };
            } else if (vk) {
                return {
                    vk: vk
                };
            }
        };

        /**
         *  @desc Create image counter
         *  Ex: 1/10
         */
        Plugin.prototype.counter = function() {
            if (this.s.counter) {
                $(this.s.appendCounterTo).append('<div id="lg-counter" role="status" aria-live="polite"><span id="lg-counter-current">' + (parseInt(this.index, 10) + 1) + '</span> / <span id="lg-counter-all">' + this.$items.length + '</span></div>');
            }
        };

        /**
         *  @desc add sub-html into the slide
         *  @param {Number} index - index of the slide
         */
        Plugin.prototype.addHtml = function(index) {
            var subHtml = null;
            var subHtmlUrl;
            var $currentEle;
            if (this.s.dynamic) {
                if (this.s.dynamicEl[index].subHtmlUrl) {
                    subHtmlUrl = this.s.dynamicEl[index].subHtmlUrl;
                } else {
                    subHtml = this.s.dynamicEl[index].subHtml;
                }
            } else {
                $currentEle = this.$items.eq(index);
                if ($currentEle.attr('data-sub-html-url')) {
                    subHtmlUrl = $currentEle.attr('data-sub-html-url');
                } else {
                    subHtml = $currentEle.attr('data-sub-html');
                    if (this.s.getCaptionFromTitleOrAlt && !subHtml) {
                        subHtml = $currentEle.attr('title') || $currentEle.find('img').first().attr('alt');
                    }
                }
            }

            if (!subHtmlUrl) {
                if (typeof subHtml !== 'undefined' && subHtml !== null) {

                    // get first letter of subhtml
                    // if first letter starts with . or # get the html form the jQuery object
                    var fL = subHtml.substring(0, 1);
                    if (fL === '.' || fL === '#') {
                        if (this.s.subHtmlSelectorRelative && !this.s.dynamic) {
                            subHtml = $currentEle.find(subHtml).html();
                        } else {
                            subHtml = $(subHtml).html();
                        }
                    }
                } else {
                    subHtml = '';
                }
            }

            if (this.s.appendSubHtmlTo === '.lg-sub-html') {

                if (subHtmlUrl) {
                    this.$outer.find(this.s.appendSubHtmlTo).load(subHtmlUrl);
                } else {
                    this.$outer.find(this.s.appendSubHtmlTo).html(subHtml);
                }

            } else {

                if (subHtmlUrl) {
                    this.$slide.eq(index).load(subHtmlUrl);
                } else {
                    this.$slide.eq(index).append(subHtml);
                }
            }

            // Add lg-empty-html class if title doesn't exist
            if (typeof subHtml !== 'undefined' && subHtml !== null) {
                if (subHtml === '') {
                    this.$outer.find(this.s.appendSubHtmlTo).addClass('lg-empty-html');
                } else {
                    this.$outer.find(this.s.appendSubHtmlTo).removeClass('lg-empty-html');
                }
            }

            this.$el.trigger('onAfterAppendSubHtml.lg', [index]);
        };

        /**
         *  @desc Preload slides
         *  @param {Number} index - index of the slide
         */
        Plugin.prototype.preload = function(index) {
            var i = 1;
            var j = 1;
            for (i = 1; i <= this.s.preload; i++) {
                if (i >= this.$items.length - index) {
                    break;
                }

                this.loadContent(index + i, false, 0);
            }

            for (j = 1; j <= this.s.preload; j++) {
                if (index - j < 0) {
                    break;
                }

                this.loadContent(index - j, false, 0);
            }
        };

        /**
         *  @desc Load slide content into slide.
         *  @param {Number} index - index of the slide.
         *  @param {Boolean} rec - if true call loadcontent() function again.
         *  @param {Boolean} delay - delay for adding complete class. it is 0 except first time.
         */
        Plugin.prototype.loadContent = function(index, rec, delay) {

            var _this = this;
            var _hasPoster = false;
            var _$img;
            var _src;
            var _poster;
            var _srcset;
            var _sizes;
            var _html;
            var _alt;
            var getResponsiveSrc = function(srcItms) {
                var rsWidth = [];
                var rsSrc = [];
                for (var i = 0; i < srcItms.length; i++) {
                    var __src = srcItms[i].split(' ');

                    // Manage empty space
                    if (__src[0] === '') {
                        __src.splice(0, 1);
                    }

                    rsSrc.push(__src[0]);
                    rsWidth.push(__src[1]);
                }

                var wWidth = $(window).width();
                for (var j = 0; j < rsWidth.length; j++) {
                    if (parseInt(rsWidth[j], 10) > wWidth) {
                        _src = rsSrc[j];
                        break;
                    }
                }
            };

            if (_this.s.dynamic) {

                if (_this.s.dynamicEl[index].poster) {
                    _hasPoster = true;
                    _poster = _this.s.dynamicEl[index].poster;
                }

                _html = _this.s.dynamicEl[index].html;
                _src = _this.s.dynamicEl[index].src;
                _alt = _this.s.dynamicEl[index].alt;

                if (_this.s.dynamicEl[index].responsive) {
                    var srcDyItms = _this.s.dynamicEl[index].responsive.split(',');
                    getResponsiveSrc(srcDyItms);
                }

                _srcset = _this.s.dynamicEl[index].srcset;
                _sizes = _this.s.dynamicEl[index].sizes;

            } else {
                var $currentEle = _this.$items.eq(index);
                if ($currentEle.attr('data-poster')) {
                    _hasPoster = true;
                    _poster = $currentEle.attr('data-poster');
                }

                _html = $currentEle.attr('data-html');
                _src = $currentEle.attr('href') || $currentEle.attr('data-src');
                _alt = $currentEle.attr('title') || $currentEle.find('img').first().attr('alt');

                if ($currentEle.attr('data-responsive')) {
                    var srcItms = $currentEle.attr('data-responsive').split(',');
                    getResponsiveSrc(srcItms);
                }

                _srcset = $currentEle.attr('data-srcset');
                _sizes = $currentEle.attr('data-sizes');

            }

            //if (_src || _srcset || _sizes || _poster) {

            var iframe = false;
            if (_this.s.dynamic) {
                if (_this.s.dynamicEl[index].iframe) {
                    iframe = true;
                }
            } else {
                if (_this.$items.eq(index).attr('data-iframe') === 'true') {
                    iframe = true;
                }
            }

            var _isVideo = _this.isVideo(_src, index);
            if (!_this.$slide.eq(index).hasClass('lg-loaded')) {
                if (iframe) {
                    _this.$slide.eq(index).prepend('<div class="lg-video-cont lg-has-iframe" style="max-width:' + _this.s.iframeMaxWidth + '"><div class="lg-video"><iframe class="lg-object" frameborder="0" src="' + _src + '"  allowfullscreen="true"></iframe></div></div>');
                } else if (_hasPoster) {
                    var videoClass = '';
                    if (_isVideo && _isVideo.youtube) {
                        videoClass = 'lg-has-youtube';
                    } else if (_isVideo && _isVideo.vimeo) {
                        videoClass = 'lg-has-vimeo';
                    } else {
                        videoClass = 'lg-has-html5';
                    }

                    _this.$slide.eq(index).prepend('<div class="lg-video-cont ' + videoClass + ' "><div class="lg-video"><span class="lg-video-play"></span><img class="lg-object lg-has-poster" src="' + _poster + '" /></div></div>');

                } else if (_isVideo) {
                    _this.$slide.eq(index).prepend('<div class="lg-video-cont "><div class="lg-video"></div></div>');
                    _this.$el.trigger('hasVideo.lg', [index, _src, _html]);
                } else {
                    _alt = _alt ? 'alt="' + _alt + '"' : '';
                    _this.$slide.eq(index).prepend('<div class="lg-img-wrap"><img class="lg-object lg-image" ' + _alt + ' src="' + _src + '" /></div>');
                }

                _this.$el.trigger('onAferAppendSlide.lg', [index]);

                _$img = _this.$slide.eq(index).find('.lg-object');
                if (_sizes) {
                    _$img.attr('sizes', _sizes);
                }

                if (_srcset) {
                    _$img.attr('srcset', _srcset);
                    if (this.s.supportLegacyBrowser) {
                        try {
                            picturefill({
                                elements: [_$img[0]]
                            });
                        } catch (e) {
                            console.warn('lightGallery :- If you want srcset to be supported for older browser please include picturefil version 2 javascript library in your document.');
                        }
                    }
                }

                if (this.s.appendSubHtmlTo !== '.lg-sub-html') {
                    _this.addHtml(index);
                }

                _this.$slide.eq(index).addClass('lg-loaded');
            }

            _this.$slide.eq(index).find('.lg-object').on('load.lg error.lg', function() {

                // For first time add some delay for displaying the start animation.
                var _speed = 0;

                // Do not change the delay value because it is required for zoom plugin.
                // If gallery opened from direct url (hash) speed value should be 0
                if (delay && !$('body').hasClass('lg-from-hash')) {
                    _speed = delay;
                }

                setTimeout(function() {
                    _this.$slide.eq(index).addClass('lg-complete');
                    _this.$el.trigger('onSlideItemLoad.lg', [index, delay || 0]);
                }, _speed);

            });

            // @todo check load state for html5 videos
            if (_isVideo && _isVideo.html5 && !_hasPoster) {
                _this.$slide.eq(index).addClass('lg-complete');
            }

            if (rec === true) {
                if (!_this.$slide.eq(index).hasClass('lg-complete')) {
                    _this.$slide.eq(index).find('.lg-object').on('load.lg error.lg', function() {
                        _this.preload(index);
                    });
                } else {
                    _this.preload(index);
                }
            }

            //}
        };

        /**
         *   @desc slide function for lightgallery
         ** Slide() gets call on start
         ** ** Set lg.on true once slide() function gets called.
         ** Call loadContent() on slide() function inside setTimeout
         ** ** On first slide we do not want any animation like slide of fade
         ** ** So on first slide( if lg.on if false that is first slide) loadContent() should start loading immediately
         ** ** Else loadContent() should wait for the transition to complete.
         ** ** So set timeout s.speed + 50
         <=> ** loadContent() will load slide content in to the particular slide
         ** ** It has recursion (rec) parameter. if rec === true loadContent() will call preload() function.
         ** ** preload will execute only when the previous slide is fully loaded (images iframe)
         ** ** avoid simultaneous image load
         <=> ** Preload() will check for s.preload value and call loadContent() again accoring to preload value
         ** loadContent()  <====> Preload();

         *   @param {Number} index - index of the slide
         *   @param {Boolean} fromTouch - true if slide function called via touch event or mouse drag
         *   @param {Boolean} fromThumb - true if slide function called via thumbnail click
         *   @param {String} direction - Direction of the slide(next/prev)
         */
        Plugin.prototype.slide = function(index, fromTouch, fromThumb, direction) {

            var _prevIndex = this.$outer.find('.lg-current').index();
            var _this = this;

            // Prevent if multiple call
            // Required for hsh plugin
            if (_this.lGalleryOn && (_prevIndex === index)) {
                return;
            }

            var _length = this.$slide.length;
            var _time = _this.lGalleryOn ? this.s.speed : 0;

            if (!_this.lgBusy) {

                if (this.s.download) {
                    var _src;
                    if (_this.s.dynamic) {
                        _src = _this.s.dynamicEl[index].downloadUrl !== false && (_this.s.dynamicEl[index].downloadUrl || _this.s.dynamicEl[index].src);
                    } else {
                        _src = _this.$items.eq(index).attr('data-download-url') !== 'false' && (_this.$items.eq(index).attr('data-download-url') || _this.$items.eq(index).attr('href') || _this.$items.eq(index).attr('data-src'));

                    }

                    if (_src) {
                        $('#lg-download').attr('href', _src);
                        _this.$outer.removeClass('lg-hide-download');
                    } else {
                        _this.$outer.addClass('lg-hide-download');
                    }
                }

                this.$el.trigger('onBeforeSlide.lg', [_prevIndex, index, fromTouch, fromThumb]);

                _this.lgBusy = true;

                clearTimeout(_this.hideBarTimeout);

                // Add title if this.s.appendSubHtmlTo === lg-sub-html
                if (this.s.appendSubHtmlTo === '.lg-sub-html') {

                    // wait for slide animation to complete
                    setTimeout(function() {
                        _this.addHtml(index);
                    }, _time);
                }

                this.arrowDisable(index);

                if (!direction) {
                    if (index < _prevIndex) {
                        direction = 'prev';
                    } else if (index > _prevIndex) {
                        direction = 'next';
                    }
                }

                if (!fromTouch) {

                    // remove all transitions
                    _this.$outer.addClass('lg-no-trans');

                    this.$slide.removeClass('lg-prev-slide lg-next-slide');

                    if (direction === 'prev') {

                        //prevslide
                        this.$slide.eq(index).addClass('lg-prev-slide');
                        this.$slide.eq(_prevIndex).addClass('lg-next-slide');
                    } else {

                        // next slide
                        this.$slide.eq(index).addClass('lg-next-slide');
                        this.$slide.eq(_prevIndex).addClass('lg-prev-slide');
                    }

                    // give 50 ms for browser to add/remove class
                    setTimeout(function() {
                        _this.$slide.removeClass('lg-current');

                        //_this.$slide.eq(_prevIndex).removeClass('lg-current');
                        _this.$slide.eq(index).addClass('lg-current');

                        // reset all transitions
                        _this.$outer.removeClass('lg-no-trans');
                    }, 50);
                } else {

                    this.$slide.removeClass('lg-prev-slide lg-current lg-next-slide');
                    var touchPrev;
                    var touchNext;
                    if (_length > 2) {
                        touchPrev = index - 1;
                        touchNext = index + 1;

                        if ((index === 0) && (_prevIndex === _length - 1)) {

                            // next slide
                            touchNext = 0;
                            touchPrev = _length - 1;
                        } else if ((index === _length - 1) && (_prevIndex === 0)) {

                            // prev slide
                            touchNext = 0;
                            touchPrev = _length - 1;
                        }

                    } else {
                        touchPrev = 0;
                        touchNext = 1;
                    }

                    if (direction === 'prev') {
                        _this.$slide.eq(touchNext).addClass('lg-next-slide');
                    } else {
                        _this.$slide.eq(touchPrev).addClass('lg-prev-slide');
                    }

                    _this.$slide.eq(index).addClass('lg-current');
                }

                if (_this.lGalleryOn) {
                    setTimeout(function() {
                        _this.loadContent(index, true, 0);
                    }, this.s.speed + 50);

                    setTimeout(function() {
                        _this.lgBusy = false;
                        _this.$el.trigger('onAfterSlide.lg', [_prevIndex, index, fromTouch, fromThumb]);
                    }, this.s.speed);

                } else {
                    _this.loadContent(index, true, _this.s.backdropDuration);

                    _this.lgBusy = false;
                    _this.$el.trigger('onAfterSlide.lg', [_prevIndex, index, fromTouch, fromThumb]);
                }

                _this.lGalleryOn = true;

                if (this.s.counter) {
                    $('#lg-counter-current').text(index + 1);
                }

            }
            _this.index = index;

        };

        /**
         *  @desc Go to next slide
         *  @param {Boolean} fromTouch - true if slide function called via touch event
         */
        Plugin.prototype.goToNextSlide = function(fromTouch) {
            var _this = this;
            var _loop = _this.s.loop;
            if (fromTouch && _this.$slide.length < 3) {
                _loop = false;
            }

            if (!_this.lgBusy) {
                if ((_this.index + 1) < _this.$slide.length) {
                    _this.index++;
                    _this.$el.trigger('onBeforeNextSlide.lg', [_this.index]);
                    _this.slide(_this.index, fromTouch, false, 'next');
                } else {
                    if (_loop) {
                        _this.index = 0;
                        _this.$el.trigger('onBeforeNextSlide.lg', [_this.index]);
                        _this.slide(_this.index, fromTouch, false, 'next');
                    } else if (_this.s.slideEndAnimatoin && !fromTouch) {
                        _this.$outer.addClass('lg-right-end');
                        setTimeout(function() {
                            _this.$outer.removeClass('lg-right-end');
                        }, 400);
                    }
                }
            }
        };

        /**
         *  @desc Go to previous slide
         *  @param {Boolean} fromTouch - true if slide function called via touch event
         */
        Plugin.prototype.goToPrevSlide = function(fromTouch) {
            var _this = this;
            var _loop = _this.s.loop;
            if (fromTouch && _this.$slide.length < 3) {
                _loop = false;
            }

            if (!_this.lgBusy) {
                if (_this.index > 0) {
                    _this.index--;
                    _this.$el.trigger('onBeforePrevSlide.lg', [_this.index, fromTouch]);
                    _this.slide(_this.index, fromTouch, false, 'prev');
                } else {
                    if (_loop) {
                        _this.index = _this.$items.length - 1;
                        _this.$el.trigger('onBeforePrevSlide.lg', [_this.index, fromTouch]);
                        _this.slide(_this.index, fromTouch, false, 'prev');
                    } else if (_this.s.slideEndAnimatoin && !fromTouch) {
                        _this.$outer.addClass('lg-left-end');
                        setTimeout(function() {
                            _this.$outer.removeClass('lg-left-end');
                        }, 400);
                    }
                }
            }
        };

        Plugin.prototype.keyPress = function() {
            var _this = this;
            if (this.$items.length > 1) {
                $(window).on('keyup.lg', function(e) {
                    if (_this.$items.length > 1) {
                        if (e.keyCode === 37) {
                            e.preventDefault();
                            _this.goToPrevSlide();
                        }

                        if (e.keyCode === 39) {
                            e.preventDefault();
                            _this.goToNextSlide();
                        }
                    }
                });
            }

            $(window).on('keydown.lg', function(e) {
                if (_this.s.escKey === true && e.keyCode === 27) {
                    e.preventDefault();
                    if (!_this.$outer.hasClass('lg-thumb-open')) {
                        _this.destroy();
                    } else {
                        _this.$outer.removeClass('lg-thumb-open');
                    }
                }
            });
        };

        Plugin.prototype.arrow = function() {
            var _this = this;
            this.$outer.find('.lg-prev').on('click.lg', function() {
                _this.goToPrevSlide();
            });

            this.$outer.find('.lg-next').on('click.lg', function() {
                _this.goToNextSlide();
            });
        };

        Plugin.prototype.arrowDisable = function(index) {

            // Disable arrows if s.hideControlOnEnd is true
            if (!this.s.loop && this.s.hideControlOnEnd) {
                if ((index + 1) < this.$slide.length) {
                    this.$outer.find('.lg-next').removeAttr('disabled').removeClass('disabled');
                } else {
                    this.$outer.find('.lg-next').attr('disabled', 'disabled').addClass('disabled');
                }

                if (index > 0) {
                    this.$outer.find('.lg-prev').removeAttr('disabled').removeClass('disabled');
                } else {
                    this.$outer.find('.lg-prev').attr('disabled', 'disabled').addClass('disabled');
                }
            }
        };

        Plugin.prototype.setTranslate = function($el, xValue, yValue) {
            // jQuery supports Automatic CSS prefixing since jQuery 1.8.0
            if (this.s.useLeft) {
                $el.css('left', xValue);
            } else {
                $el.css({
                    transform: 'translate3d(' + (xValue) + 'px, ' + yValue + 'px, 0px)'
                });
            }
        };

        Plugin.prototype.touchMove = function(startCoords, endCoords) {

            var distance = endCoords - startCoords;

            if (Math.abs(distance) > 15) {
                // reset opacity and transition duration
                this.$outer.addClass('lg-dragging');

                // move current slide
                this.setTranslate(this.$slide.eq(this.index), distance, 0);

                // move next and prev slide with current slide
                this.setTranslate($('.lg-prev-slide'), -this.$slide.eq(this.index).width() + distance, 0);
                this.setTranslate($('.lg-next-slide'), this.$slide.eq(this.index).width() + distance, 0);
            }
        };

        Plugin.prototype.touchEnd = function(distance) {
            var _this = this;

            // keep slide animation for any mode while dragg/swipe
            if (_this.s.mode !== 'lg-slide') {
                _this.$outer.addClass('lg-slide');
            }

            this.$slide.not('.lg-current, .lg-prev-slide, .lg-next-slide').css('opacity', '0');

            // set transition duration
            setTimeout(function() {
                _this.$outer.removeClass('lg-dragging');
                if ((distance < 0) && (Math.abs(distance) > _this.s.swipeThreshold)) {
                    _this.goToNextSlide(true);
                } else if ((distance > 0) && (Math.abs(distance) > _this.s.swipeThreshold)) {
                    _this.goToPrevSlide(true);
                } else if (Math.abs(distance) < 5) {

                    // Trigger click if distance is less than 5 pix
                    _this.$el.trigger('onSlideClick.lg');
                }

                _this.$slide.removeAttr('style');
            });

            // remove slide class once drag/swipe is completed if mode is not slide
            setTimeout(function() {
                if (!_this.$outer.hasClass('lg-dragging') && _this.s.mode !== 'lg-slide') {
                    _this.$outer.removeClass('lg-slide');
                }
            }, _this.s.speed + 100);

        };

        Plugin.prototype.enableSwipe = function() {
            var _this = this;
            var startCoords = 0;
            var endCoords = 0;
            var isMoved = false;

            if (_this.s.enableSwipe && _this.doCss()) {

                _this.$slide.on('touchstart.lg', function(e) {
                    if (!_this.$outer.hasClass('lg-zoomed') && !_this.lgBusy) {
                        e.preventDefault();
                        _this.manageSwipeClass();
                        startCoords = e.originalEvent.targetTouches[0].pageX;
                    }
                });

                _this.$slide.on('touchmove.lg', function(e) {
                    if (!_this.$outer.hasClass('lg-zoomed')) {
                        e.preventDefault();
                        endCoords = e.originalEvent.targetTouches[0].pageX;
                        _this.touchMove(startCoords, endCoords);
                        isMoved = true;
                    }
                });

                _this.$slide.on('touchend.lg', function() {
                    if (!_this.$outer.hasClass('lg-zoomed')) {
                        if (isMoved) {
                            isMoved = false;
                            _this.touchEnd(endCoords - startCoords);
                        } else {
                            _this.$el.trigger('onSlideClick.lg');
                        }
                    }
                });
            }

        };

        Plugin.prototype.enableDrag = function() {
            var _this = this;
            var startCoords = 0;
            var endCoords = 0;
            var isDraging = false;
            var isMoved = false;
            if (_this.s.enableDrag && _this.doCss()) {
                _this.$slide.on('mousedown.lg', function(e) {
                    if (!_this.$outer.hasClass('lg-zoomed') && !_this.lgBusy && !$(e.target).text().trim()) {
                        e.preventDefault();
                        _this.manageSwipeClass();
                        startCoords = e.pageX;
                        isDraging = true;

                        // ** Fix for webkit cursor issue https://code.google.com/p/chromium/issues/detail?id=26723
                        _this.$outer.scrollLeft += 1;
                        _this.$outer.scrollLeft -= 1;

                        // *

                        _this.$outer.removeClass('lg-grab').addClass('lg-grabbing');

                        _this.$el.trigger('onDragstart.lg');
                    }
                });

                $(window).on('mousemove.lg', function(e) {
                    if (isDraging) {
                        isMoved = true;
                        endCoords = e.pageX;
                        _this.touchMove(startCoords, endCoords);
                        _this.$el.trigger('onDragmove.lg');
                    }
                });

                $(window).on('mouseup.lg', function(e) {
                    if (isMoved) {
                        isMoved = false;
                        _this.touchEnd(endCoords - startCoords);
                        _this.$el.trigger('onDragend.lg');
                    } else if ($(e.target).hasClass('lg-object') || $(e.target).hasClass('lg-video-play')) {
                        _this.$el.trigger('onSlideClick.lg');
                    }

                    // Prevent execution on click
                    if (isDraging) {
                        isDraging = false;
                        _this.$outer.removeClass('lg-grabbing').addClass('lg-grab');
                    }
                });

            }
        };

        Plugin.prototype.manageSwipeClass = function() {
            var _touchNext = this.index + 1;
            var _touchPrev = this.index - 1;
            if (this.s.loop && this.$slide.length > 2) {
                if (this.index === 0) {
                    _touchPrev = this.$slide.length - 1;
                } else if (this.index === this.$slide.length - 1) {
                    _touchNext = 0;
                }
            }

            this.$slide.removeClass('lg-next-slide lg-prev-slide');
            if (_touchPrev > -1) {
                this.$slide.eq(_touchPrev).addClass('lg-prev-slide');
            }

            this.$slide.eq(_touchNext).addClass('lg-next-slide');
        };

        Plugin.prototype.mousewheel = function() {
            var _this = this;
            _this.$outer.on('mousewheel.lg', function(e) {

                if (!e.deltaY) {
                    return;
                }

                if (e.deltaY > 0) {
                    _this.goToPrevSlide();
                } else {
                    _this.goToNextSlide();
                }

                e.preventDefault();
            });

        };

        Plugin.prototype.closeGallery = function() {

            var _this = this;
            var mousedown = false;
            this.$outer.find('.lg-close').on('click.lg', function() {
                _this.destroy();
            });

            if (_this.s.closable) {

                // If you drag the slide and release outside gallery gets close on chrome
                // for preventing this check mousedown and mouseup happened on .lg-item or lg-outer
                _this.$outer.on('mousedown.lg', function(e) {

                    if ($(e.target).is('.lg-outer') || $(e.target).is('.lg-item ') || $(e.target).is('.lg-img-wrap')) {
                        mousedown = true;
                    } else {
                        mousedown = false;
                    }

                });

                _this.$outer.on('mousemove.lg', function() {
                    mousedown = false;
                });

                _this.$outer.on('mouseup.lg', function(e) {

                    if ($(e.target).is('.lg-outer') || $(e.target).is('.lg-item ') || $(e.target).is('.lg-img-wrap') && mousedown) {
                        if (!_this.$outer.hasClass('lg-dragging')) {
                            _this.destroy();
                        }
                    }

                });

            }

        };

        Plugin.prototype.destroy = function(d) {

            var _this = this;

            if (!d) {
                _this.$el.trigger('onBeforeClose.lg');
                $(window).scrollTop(_this.prevScrollTop);
            }


            /**
             * if d is false or undefined destroy will only close the gallery
             * plugins instance remains with the element
             *
             * if d is true destroy will completely remove the plugin
             */

            if (d) {
                if (!_this.s.dynamic) {
                    // only when not using dynamic mode is $items a jquery collection
                    this.$items.off('click.lg click.lgcustom');
                }

                $.removeData(_this.el, 'lightGallery');
            }

            // Unbind all events added by lightGallery
            this.$el.off('.lg.tm');

            // destroy all lightGallery modules
            $.each($.fn.lightGallery.modules, function(key) {
                if (_this.modules[key]) {
                    _this.modules[key].destroy();
                }
            });

            this.lGalleryOn = false;

            clearTimeout(_this.hideBarTimeout);
            this.hideBarTimeout = false;
            $(window).off('.lg');
            $('body').removeClass('lg-on lg-from-hash');

            if (_this.$outer) {
                _this.$outer.removeClass('lg-visible');
            }

            $('.lg-backdrop').removeClass('in');

            setTimeout(function() {
                if (_this.$outer) {
                    _this.$outer.remove();
                }

                $('.lg-backdrop').remove();

                if (!d) {
                    _this.$el.trigger('onCloseAfter.lg');
                }
                _this.$el.focus();

            }, _this.s.backdropDuration + 50);
        };

        $.fn.lightGallery = function(options) {
            return this.each(function() {
                if (!$.data(this, 'lightGallery')) {
                    $.data(this, 'lightGallery', new Plugin(this, options));
                } else {
                    try {
                        $(this).data('lightGallery').init();
                    } catch (err) {
                        console.error('lightGallery has not initiated properly', err);
                    }
                }
            });
        };

        $.fn.lightGallery.modules = {};

    })();


}));
